Table 1 Technical specifications for the pixel- and volume-level cases

Slice thickness (mm)

1, 1.5, 3

1, 1.5, 2, 3

Pixel spacing (mm)

0.51 × 0.51 to 0.84 × 0.84

0.35 × 0.35 to 0.97 × 0.97

Tube voltage (kV)

100, 120

80, 100, 120, 140

Exposure (mAs)

10 to 284

30 to 382

Filter type

WEDGE_2, WEDGE_3, YB, no filter

FLAT, WEDGE_2, WEDGE_3, YB, D, no filter

Convolution kernel

B60f, B70f, YB

B60f, B60s, B70f, I70f\2, I70f\3, YB, D